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If a and b are two prime numbers, then find LCM (a,b). |
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Answer» Given a and b are prime numbers. Therefore, HCF (a, b) = 1. We know that for any two positive integers a and b, HCF (a, b) × LCM (a, b) = a × b. Therefore, LCM (a, b) = \(\frac{ab}{HCF (ab)}\) =\(\frac{ab}{1} = ab.\) Hence, if a and b are prime numbers then LCM (a, b) = ab. |
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